Overdot -- From Wolfram MathWorld

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  • History and Terminology
  • Notation
Overdot

An "overdot" is a raised dot appearing above a symbol most commonly used in mathematics to indicate a derivative taken with respect to time (e.g., x^.=dx/dt). The expression a^. is voiced "a dot," and was Newton's notation for derivatives (which he called "fluxions").

See also

Derivative, Dot, Double Dot

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References

Bringhurst, R. The Elements of Typographic Style, 2nd ed. Point Roberts, WA: Hartley and Marks, p. 282, 1997.

Referenced on Wolfram|Alpha

Overdot

Cite this as:

Weisstein, Eric W. "Overdot." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Overdot.html

Subject classifications

  • History and Terminology
  • Notation
Created, developed and nurtured by Eric Weisstein at Wolfram Research

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